What are the factors that affect the accuracy of photocurable 3D printing models

Light curing molding is one of the most popular and common techniques in additive manufacturing. The model printed by photocuring 3D printing has high accuracy. Therefore, photocurable 3D printing has become the first choice for many users. So, what are the factors that affect the accuracy of the photocuring 3D printer model? Let’s take a look at the factors that affect the accuracy of the photocuring 3D printing model.

3d printed model
3d printed model

Photocuring 3D printing itself accuracy

When choosing photocurable 3D printing, the first step is to understand the resolution of the machine. There are 2k and 4K machines on the market, and the accuracy of 4K is relatively high. Its resolution is the same as the screen image precision on our phone and computer screens, which is how many pixels the monitor can display. Resolution is the main factor affecting accuracy.

Z-axis is controlled to print up and down, so this has a big impact on layering. Z-axis motion is mainly driven by screw and guide rail. Therefore, we usually need to oil and maintain it to ensure that the Z-axis does not go up and down smoothly. In the case of buying a machine, you can look at the quality of both to see how accurate they are.

What are the factors that affect the precision of the photocuring 3D printing model?

Parameter Settings

There is a matter of setting parameters before printing the model. Slicing refers to using software to export model formats. The machine can recognize and display the graphics of each layer during printing. Therefore, each layer has a thickness, and the thickness of each layer can be set by changing the parameter. The larger the layer thickness setting, the more prominent the layer pattern. In some of the curved areas, you can see very prominent steps. It may be that the printed model is different from the actual size and the surface is rough.

Models produced by photocurable 3D printing are highly accurate and can be easily smoothed by a photocurable 3D printer in the case of grinding and polishing. If the model is damaged, the original photosensitive resin can be applied directly to the damaged area and then cured with ULTRAVIOLET light. Just sandpaper it.

Quality of photosensitive resin

The quality of photosensitive resin will affect the bonding properties, stacking properties, and fluidity of liquid resin. Different quality consumables will have different interference with the surface quality of the molding model, and the surface roughness value of the model is also very different. If you use a poor-quality resin machine to move horizontally up and down, the surface quality will be very poor. Side quality by tilt Angle interference will also appear uneven, resulting in steps.

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